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Finding the Fourth Proportional to 15,029.10, 20,741.94 and 8,741.46

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Solution

The fourth proportional to 15,029.10, 20,741.94 and 8,741.46 is: 12,064.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,029.10 : 20,741.94 = 8,741.46 : x
  2. Step 2: Convert to fraction form
    15,029.10/20,741.94 = 8,741.46/x
  3. Step 3: Cross multiply
    15,029.10x = 20,741.94 × 8,741.46
  4. Step 4: Simplify right side
    15,029.10x = 181,314,838.83
  5. Step 5: Solve for x
    x = 181,314,838.83/15,029.10
  6. Step 6: Final answer
    x = 12,064.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.